Best AtCoder Alternatives in 2026
Updated
20 apps from coding challenge platforms ranked against AtCoder on the same published basis.
- 1AtCoder vs CodeSignal
- 2AtCoder vs HackerEarth Assessments
- 4AtCoder vs beecrowd
- 5AtCoder vs Codeforces
- 6AtCoder vs CodingBat
- 7AtCoder vs CSSBattle
- 8AtCoder vs Edabit
- 9AtCoder vs Eolymp
- 10AtCoder vs Yandex Contest
- 11AtCoder vs GeeksforGeeks Practice
- 12AtCoder vs HackerRank
- 13AtCoder vs AlgoExpert
- 14AtCoder vs LeetCode
- 15AtCoder vs CheckiO
- 16AtCoder vs CodeChef IDE
- 17AtCoder vs DOMjudge
- 18AtCoder vs Kattis
- 19AtCoder vs NextJudge
- 20AtCoder vs SQLZoo
- 21AtCoder vs Topcoder
AtCoder alternatives compared
| # | App | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | CodeSignal | 6.5 | Free plan | $24.99/mo | Android, API, iOS, Web |
| 2 | HackerEarth Assessments | 6.5 | Free plan | Free | Linux, Mac, Web, Windows |
| 4 | beecrowd | 6.4 | Free plan | Free | API, Web |
| 5 | Codeforces | 6.4 | Free plan | Free | API, Web |
| 6 | CodingBat | 6.4 | Free plan | Free | Web |
| 7 | CSSBattle | 6.4 | Free plan | $4.90/mo | Web |
| 8 | Edabit | 6.4 | Free plan | Free | Web |
| 9 | Eolymp | 6.4 | Free plan | Free | API, Web |
| 10 | Yandex Contest | 6.4 | Free plan | Free | API, Web |
| 11 | GeeksforGeeks Practice | 5.6 | No | — | Android, iOS, Web |
| 12 | HackerRank | 5.6 | No | $165/mo | API, Mac, Web, Windows |
| 13 | AlgoExpert | 5.4 | No | $9.92/mo | Web |
| 14 | LeetCode | 5.3 | No | — | Android, iOS, Web |
| 15 | CheckiO | 5.1 | No | — | Web |
| 16 | CodeChef IDE | 5.1 | No | — | Web |
| 17 | DOMjudge | 5.1 | No | — | Web, Linux |
| 18 | Kattis | 5.1 | No | — | Web |
| 19 | NextJudge | 5.1 | No | — | API, self-hosted, Web |
| 20 | SQLZoo | 5.1 | No | — | Web |
| 21 | Topcoder | 5.1 | No | — | Web |
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Questions about AtCoder alternatives
What is the best alternative to AtCoder?
CodeSignal, number 1 in coding challenge platforms with a score of 6.5 out of 10. The others here: HackerEarth Assessments, beecrowd, Codeforces and 16 more.
What is the best free alternative to AtCoder?
CodeSignal is the best-ranked alternative with a free plan. 9 of the 20 alternatives here publish a free plan on their own pricing pages.
How are these alternatives ranked?
Ranked free-and-open first: a usable free tier and open-source code, then the platforms it runs on and its documentation.